Burner



E. C. KAHN.

BURNER.

APPLICATION FILED JAN- 6. 1 919.

Patented 001;. 5, 1920.

WITNESSES:

UNITED STATES PATENT OFFICE.

EDWARD C. KAHN, OF. MILWAUKEE, WISCONSIN.

BURNER.

Application filed January 6,

T 0 (L15 whom it may concern.

Be it known that I, EDWARD G. KAHN, a citizen of the United States, andresident of Milwaukee, in the county of Milwaukee and State oflVisconsimhave invented certain new and useful Improvements in Burners;and I do hereby declare that the following .is a full, clear, and exactdescription thereof.

My invention relates to new and useful improvements in means forgenerating fuel vapor, more particularly of that type including agenerating chamber to which oil is supplied for vaporizing said oil,this chamber being connected with a nozzle through which the oil vaporis discharged for ignition, the chamber being heated by said auxiliaryburner which, in devices of this character heretofore contemplated, hasbeen supplied with .oil vapor from the generator.

The vapor supplied by such generator is adapted for heating retorts orfurnaces, and in the latter use it is desired to maintain operation ofthe generator'for comparatively long periods of time without activesupervision. It is therefore essential to provide an auxiliary burnerfor the generator which is steady and reliable in operation.

In generators wherein the supply of fuel for the auxiliary burner isdrawn from the generating chamber, a salient disadvantage resides in thefact that such heating supply is affected by pressure conditions in thechamber. Hence, should the main nozzle of the generating chamber becomeclogged, the gas vapor would back up in saidchamber shutting off thesupply of oil thereto and consequently cutting off the heat for thegenerator, thus halting operation of the entire burner. In view-of thepressure supply of oil for the burner, oil would then fill thegenerating chamber and be discharged through the nozzle, involvingconsiderable elements of danger and disadvantages in addition toextinguishing the main burner flame.

It is therefore primarily the object of my invention to insure againststoppage of the operation of the generator by utilizing an unfailingsource of heat fuel for the gen erator which is afforded by thecommunity service supply of gas.

A further object resides in the provision Specification of LettersPatent.

Patented Oct. 5, 1920.

1919. Serial No. 69,895.

of a simple compact and efiicient structure compassing this object.

\Vith the above and other objects and advantages in view, which will beapparent as the description proceeds, my invention resides in the novelfeatures of construction, combination and arrangement of parts ashereinafter more particularly described and defined by the appendedclaims.

In the accompanying drawings:

Figure l is a vertical sectional view through an auxiliary burner andgenerator embodying my invention, the plane of this section beingindicated by the line 11 of Fig. 2.'

Fig. 2 is a plan view of the burner, portions of the hood being brokenaway.

referring now more particularly to the accompanying drawings, 5designates the wall of a retort or furnace which is to be heated bycombustion of vapor supplied by my improved generator and auxiliaryburner structure, said wall being apertured to receive a mixing tube 6for the vaporized oil and having a support 7 disposed there adjacentbelow the mixing tube and on which is seated the base 8 of my device. Agas burner head 9 is supported by legs 10 upstanding on this base and isconnected by a mixing valve ll and cock 12 with a service supply pipe 13which affords a constant and unfailing source of gas.

The gas burner 9 is provided centrally with a socket 14 in which isthreaded a post 15 which carries at its upper end a sleeve 16 receivingthe intermediate section 17 of the generator. This intermediate sectionis connected with outer sections 18 by U-couplings 19, all of saidsections being disposed in the same plane and within the heating area ofthe gas burner 9. A jet nozzle 20 is connected with the end of one ofthe outer generator sections 18 and arranged to discharge intothe'mixing tube 6 whereby to effect a proper admixture of oil vapor andair for discharge into the furnace. The other outer generator section isconnected by a downwardly inclined pipe 21 with a needle valve 22 whichis supplied with oil by the usual tubing 23, reducing members 24 beingdisposed between the pipe 21 and the needle valve to compensate for thedifference in diameter between the valve port and the interior of thegenerating chamber. Vhile I have shown a preferred form of generatingchamber involving a tortuous path afforded by the various pipe sectionsand U-couplings, it Will be appreciated that so far as the broaderaspect of my invention is concerned, the details of this generator maybe varied, the essential feature being the heating of the generator byan entirely independent source of fuel afforded by the community servicesupply of gas.

. A hood is provided for confining the heat of the gas burner 9 to thegenerator, said hood, comprising an apertured top and an annular wall 26carrying inwardly extending bracket arms 27 seating on the U-couplingsl9 ofthe generator, said wall being cut away at 28 to receive the endportions of the generator and to limit. movementof the hood. A pilotlight tube 29 extends from the gas supply pipe 13 through the wall 5 ofthe retort or furnace and has anupwardly extended portion terminating atthe mouth of the mixing tube 6. Anfexcedingly simple and eflicientstructure is thus provided, which may be most readily assembled andwhich insures a constant and reliable operation.

lVhat is claimed is: r

1. A structure of the class described including an auxiliary burner,apost upstand-' ing from the central portion of'said burner, a sleevecarried by the post, a source'of gas for the auxiliary burner, agenerator including .a series of connected pipe sections, theintermediate section being mounted in said sleeve, and means forsupplying oilto the generator 2. A structure of the class describedineluding an auxiliary burner, a source of gas generator having itsintermediate portion connected with said supporting means and beingmounted over the burner to receive the heat therefrom, a burnerconnected with the generator, meansfor supplying oil to the generator,and a hood surrounding the generator and confining the heat from theauxiliary burner around the former. V

3. Astructure of the class described including an'au'xiliary burner, asource of gas supply for the auxiliary burner, a sleeve supported abovethe auxiliary burner, a generator carried by said sleeve and mountedover the auxiliary burner to receive the heat therefrom, and means forsupplying oil to the generator. 1 r

a. A structure of the class described including an auxiliary burner, aservice supply of gas for said burner, a generator arranged to be heatedby saidburner, a burner for the generator, means for supplying oil tothe generator, a pilot in position to ignite the fuel from thegenerator, and a gas supply pipe from the service supply of'gas to thepilot whereby to maintain a constant ignition means irrespective of thecondition of generation of generator burner fuel.

In testimony that I claim the foregoing I have hereunto. set. my hand atMilwaukee,

inuthe county of Milwaukee and State of Wisconsin.

EDWARD c. KAHN.

